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APG MDI User Manual

Intrinsically safe modbus network display and controller
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MDI
User Manual
Intrinsically Safe
Modbus Network Display and Controller
APG
Doc #9005617
Part #200333
Rev A, 12/2019
R

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Summary of Contents for APG MDI

  • Page 1 User Manual Intrinsically Safe Modbus Network Display and Controller Doc #9005617 Part #200333 Rev A, 12/2019...

  • Page 2: Table Of Contents

    Accessing Mode Options ......................10 Chapter 4: Modbus Programming Notes .............. 11 Modbus Programming ........................11 Modbus Programming via Internet ....................11 Modbus Programming with RST-6001 and APG Modbus Software ........11 Chapter 5: Maintenance ................... 12 General Care ............................ 12 Replacing Lithium Batteries ......................12 Troubleshooting ..........................

  • Page 3: Introduction

    Please take a few minutes to familiarize yourself with your MDI and this manual. The MDI Intrinsically Safe Modbus Network Display and Controller provides a local display in a Class I, Zone 1 area that can monitor and control a sensor within a Class I, Zone 0 or Class I , Zone 1 hazardous area. The MDI can supply power to the sensor it controls, creating a complete monitoring-and-control system within the hazardous area.

  • Page 4: Warranty And Warranty Restrictions

    Warranty and Warranty Restrictions This product is covered by APG’s warranty to be free from defects in material and workmanship under normal use and service of the product for 24 months. For a full explanation of our Warranty, please visit https://www.apgsensors.com/about-us/terms-conditions.

  • Page 5: Chapter 1: Specifications And Options

    Chapter 1: Specifications and Options • Dimensions 4.92” 125 mm 4.09” 104 mm External Decrease/Power Grounding Screw Button Position 2 4.15” 105.5 mm 7 mm hole Position 1 4.25” 108 mm 3” Aluminum Housing External 5.71” Decrease/Power 145 mm 4.53” Button 115 mm Grounding Screw...

  • Page 6: Specifications

    Aluminum Housing Pressure die casting, 0.5% Mg Chemically resistant paint Mounting Standard No mounting hardware provided Compatible Intrinsically Safe APG Modbus Senors Ultrasonic MNU IS Magnetostrictive MPI-E, MPI-R, MPI-E Chemical, MPI-F, MPI-T IMPORTANT: USE ONLY THREE (3) SAFT MODEL LS14500 OR THREE (3) XENO MODEL XL-060F BAT- TERIES.

  • Page 7: Model Number Configurator

    • Model Number Configurator Model Number: MDI - __9__ __4__ __0__ _____ __0__ - _____ _____ - _____ _____ - _____ - __B0__ A. Power H. Auxiliary Connection Location† □ 9 ▲ □ 0 ▲ Batteries (3) AA 3.6V Lithium Parallel No Auxiliary Connection □...

  • Page 8: Wiring Diagram For Slave Sensor Connection

    RST-6001 Modbus Controller USB to computer with APG Modbus software Note: MDI must be removed from Hazardous 4-Pin / Cable Location prior to connection to RST-6001, Slave Out and disconnected from RST-6001 prior to installation in Hazardous Location. DC GND...

  • Page 9: Is Use Case Diagrams

    Modbus Address: 1 Single MDI controlling a single IS sensor • MDI is located in Zone 1 area. Sensor can be in Zone 0 or Zone 1 without additional barriers. • MDI is battery powered; allows for software-based switchable power for sensor.

  • Page 10: Chapter 2: Installation And Removal Procedures And Notes

    Chapter 2: Installation and Removal Procedures and Notes • Tools Needed Installing the MDI requires tools appropriate to the fasteners being used (screw driver, socket driver, etc.). • ATEX Stated Conditions of Use • Install per Document #9005447. • Use only three-SAFT model LS14500 or three-Xeno model XL-060F battery cells.

  • Page 11: Electrical Installation

    • Ensure any external connections to or from the MDI are de-energized. • Disconnect wires or connector on cable to MDI. • Remove the MDI and store it in a dry place, at a temperature between -49° F and 194° F. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 12: Chapter 3: User Interface And Access Modes

    Increase Button Enter Button Decrease/Power Button Figure 3.1 The operation of the MDI’s three buttons depends on whether the MDI is in normal operations or you are navigating the MDI Setup Menus. During MDI operation Increase Button: Cycles through sensor readings for multiple display configuration. (See Number of Sensors, page 24) Decrease/Power Button: Press to enter the Main Menu.

  • Page 13: Mdi Setup Menus

    • MDI Setup Menus Main Menu COMM bAUd R PARITY STOPbT OUTPUT T1TYPE C TYPE T1REAd SENAdR T1 WIN NUMSEN EXIT REGNUM FUNCTN REGTYP SCANRT WRITE AdRCHG EXIT AUTO AdVSET dEC PL SENLAb SEN 1 MASK SEN 2 SHIFT SEN 3...

  • Page 14: Accessing Mode Options

    • Accessing Mode Options The MDI has several Operating Modes which will limit or lock access to the setup menus. To access the Operating Mode setting, follow the steps below. 1. Simultaneously press and hold the Decrease button and the Enter button for approximately 5 seconds to bring up the 3-digit Mode Access Number.

  • Page 15: Chapter 4: Modbus Programming Notes

    485). MDIs operate as controllers of a single IS sensor when installed in a Hazardous Area. APG’s Modbus devices’ default transmission settings are 9600 Baud, 8 Bits, 1 Stop Bit, No Parity. Since the MDI does not actively poll the full register contents of slave sensors, transmission times are not controlled to the same extent that transmission times for other sensors are.

  • Page 16: Chapter 5: Maintenance

    Chapter 5: Maintenance • General Care Your MDI is very low maintenance and will need little care as long as it is installed correctly. However, in general, you should: • Avoid applications for which the MDI was not designed, such as extreme temperatures, contact with incompatible corrosive chemicals and fumes, or other damaging environments.

  • Page 17: Troubleshooting

    Should you have problems with your MDI, here are some troubleshooting steps: • Check connections between the MDI and your IS Modbus sensor. • Verify that the register address the MDI is showing is correct. See register lists in Appendices B-D. • Check battery status.

  • Page 18: Chapter 6: Programming And Parameter Configuration

    CUSTOM = Custom Units 8 = Custom Units UNITS (40412) selects the units of measurement that will be used for the MDI display (See Figure 3.1). The selected units is applied to ALL sensor readings, and cannot be set for individual sensors.

  • Page 19: Advest (Advanced Settings)

    Range = 0 - 4 dEC PL (40411) sets the number of digits displayed to the right of the decimal on the MDI for registers without decimals (e.g., Calculated Readings in Input Registers 30303-30304 do not have decimal places). This setting is ignored for registers that include decimal places (e.g., Raw Readings in Input Register 30300).
  • Page 20 2 = RST/LOE 2 = RST/LOE bAT EN (40418) specifies power source to be represented by battery meter on the MDI’s display (See figure 3.1). “Internal” monitors the battery voltage for a battery powered MDI. RST/LOE monitors the supply voltage from an RST-5000 series controller or LOE ultrasonic sensor Modbus master device (non-IS installation only).

  • Page 21: Output (Output Configurations)

    Modbus Alarm and Slave Sensor Power Transistor Settings The MDI has two digital outputs: Input Register 30309, which functions as a Modbus Alarm Status, and an output transistor that can used as a controllable power source for the sensor the MDI is montioring/ controlling.
  • Page 22 Trip Type TRIP TRIP READING WINDOW READING ZERO 0 - Near READING Near activates the Alarm (Input Register 30309) whenever the slave sensor reading (Input Registers 30303-04) is less than the Trip Reading setting. TRIP TYPE 0 NEAR Trip Type 1 - EXCLSV TRIP TYPE 1 EXCLUSIVE...
  • Page 23 Auto Off delay must be greater than the ON SEC (On Time) setting (See Figure 6.3). If Auto-Off is less than On Time, the MDI and the slave sensor power transistor will both turn off at Auto-Off. In other words, the MDI cannot shut off and leave the slave sen- sor power transistor on.
  • Page 24 Slave Sensor Power Configurations The MDI Slave Sensor Power Transistor allows you to use the MDI batteries to power your slave sensor. The Slave Sensor Power Transistor is controlled by three trip types: Type 6 - Off, Type 8 - On, and Type 9 - Timed Interval.
  • Page 25 For IS Systems with Passive Control Equipment, the Passive Control Equipment will be sniffing the slave sensor reading from the MDI, so set the MDI to turn itself on and power up the slave sensor as often as you want the control system to be updated. Auto-Off time is less critical, as physical observation redundant to the Passive Control Equipment sniffing of the MDI.

  • Page 26: Comm (Communications)

    1 = 9600 2 = 19200 2 = 19200 3 = 38400 3 = 38400 bAUd R (40402) sets the baud rate for the MDI. APG Modbus sensors and controllors default to 9600. Menu Parameter MDI Options Software Options COMM...
  • Page 27 Communication Type 3 - SETUP Setup sets the MDI to operate as a slave device in order to be programmed using APG Modbus Software. This setting must be made via the MDI’s on-board menu system, prior to connecting to APG Modbus Software.
  • Page 28 WRITE function (see below); they are observable, but cannot be directly set. 3 (0x03) sets the MDI to read a sensor parameter from a Holding Register. 4 (0x04) sets the MDI to read a sensor reading from an Input Register.
  • Page 29 REGTYP REGVAL WRT YN WRITE allows an MDI to write a value to a Holding Register of a sensor it is controlling. The MDI steps through the settings to be set. • Sensor Address: the Modbus network address of the the target sensor.

  • Page 30: Senlab (Sensor Labels)

    Range = A-Z, 0-9, (*+,-./) LOERST (40510-40512) allows the user to create a custom, 6 character label for an analog sensor attached to an LOE/RST Master. During MDI operation, the Sensor Label will alternate with the Units Label. (See User Interface, page 8.)

  • Page 31: Pctful (Percent Full)

     Readings for all connected sensor will be displayed as Percent Full, based on full readings for each entered in PCTFUL menu. NOTE: The MDI Alarm is based on sensor readings, not Percent Full displays. (See pag-  es 17-19)

  • Page 32: Blight (Backlight)

    LCD backlight intensity using the Up and Down arrows. There is no corresponding Modbus Register for bRTNES, so it is not editable through APG Modbus Software. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 33: Chapter 7: Hazardous Drawing & Certificate

    Chapter 7: Hazardous Installation Drawing & Certificates • Hazardous Installation Drawing Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 34: Csa Certificate Of Compliance

    Ex ib [ia Ga] IIB 142°C (T3) Gb IP66 Modbus Network Display – Model MDI-940d0-fg-hi-j-k-l. Battery powered, using 3 AA size lithium cells, manufactured by SAFT, model LS14500, Xeno, model XL-060F. External circuits rated 12 VDC, 136 mA, Class 2/SELV, 809mW, Tamb = -30°C to +85°C.
  • Page 35 Certificate: 70219728 Master Contract: 237484 Project: 70219728 Date Issued: 2019-06-12 Main Connection Location g – Cable connection 4-PIN M12 MALE CONNECTOR 4-PIN M12 FEMALE CONNECTOR CABLE W/FLYING LEADS, SPECIFY LENGTH IN FEET CABLE W/CONNECTOR, SPECIFY LENGTH IN FEET Aux connection location i –...
  • Page 36 Certificate: 70219728 Master Contract: 237484 Project: 70219728 Date Issued: 2019-06-12 The products listed are eligible to bear the CSA Mark shown with adjacent indicators 'C' and 'US' for Canada and US (indicating that products have been manufactured to the requirements of both Canadian and U.S. Standards) or with adjacent indicator 'US' for US only or without either indicator for Canada only.

  • Page 37: Iecex Certificate Of Conformity

    • IECEx Certificate of Conformity I I E E C C E E x x C C e e r r t t i i f f i i c c a a t t e e o o f f C C o o n n f f o o r r m m i i t t y y I I N N T T E E R R N N A A T T I I O O N N A A L L E E L L E E C C T T R R O O T T E E C C H H N N I I C C A A L L C C O O M M M M I I S S S S I I O O N N I I E E C C C C e e r r t t i i f f i i c c a a t t i i o o n n S S c c h h e e m m e e f f o o r r E E x x p p l l o o s s i i v v e e A A t t m m o o s s p p h h e e r r e e s s for rules and details of the IECEx Scheme visit www.iecex.com...
  • Page 38 I I E E C C E E x x C C e e r r t t i i f f i i c c a a t t e e o o f f C C o o n n f f o o r r m m i i t t y y Certificate No: IECEx SIR 18.0076X Issue No: 1...
  • Page 39 The Modbus Network Display (MDI) is an Intrinsically Safe Display unit housed within an aluminium pressure die-casting IP66 enclosure having a viewing window, to be used in a Class I Zone 1 Hazardous Location. The MDI is Intrinsically Safe when connected to and approved IS barrier and it provides output power to the separately-approved model MPI Magnetostrictive probe, for use in Class I, Zone 0 Hazardous Location.
  • Page 40 D D E E T T A A I I L L S S O O F F C C E E R R T T I I F F I I C C A A T T E E C C H H A A N N G G E E S S ( ( f f o o r r i i s s s s u u e e s s 1 1 a a n n d d a a b b o o v v e e ) ) : : This issue, issue 1, recognises the following change: refer to the certificate annex to view a comprehensive hostory: Model number revised from “MND-940d0f-g-h-i-j-k-l” to “MDI-940d0-fg-hi-j-k-l”; Marking, Nameplate and Equipment Description revised to include the new Model Code options.

  • Page 41: Eu Declaration Of Conformity

    • EU Declaration of Conformity Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

  • Page 42: Appendices

    Appendix A: MDI Factory Default Settings • Resetting MDI to Factory Defaults • Press and hold the Decrease/Power button and Enter button for approximately 5 seconds. • If necessary, enter the Mode Access Password (See page 26). • When the Operating Mode number (see page 10) appears, change it to 125, and press enter.

  • Page 43: Appendix B: Mnu Is Modbus Registers

    Appendix B: MNU IS Modbus Registers Input Registers (0x04): Register Type Returned Data 30300 Raw Distance/Level Reading (in mm) 30302 Temperature Reading (in C, signed) 30303-30304 Calculated Reading (in selected units, no decimal) 30307 Version 30307 Signal Strength 30309 Trip 1 Alarm 30309 Trip 1 Status 30310...

  • Page 44: Appendix C: Mpi Modbus Registers

    Appendix C: MPI Series Modbus Registers nput Registers (0x04): Register Type Returned Data 30299 Model Type 30300 Raw Top Float Reading (in mm, unsigned) 30301 Raw Bottom Float Reading (in mm, unsigned) 30302 Temperature Reading (in C, signed) 30303-30304 Calculated Top Float Reading (in selected Units) 30305-30306 Calculated Bottom Float Reading (in selected Units) 30307...

  • Page 45: Appendix D: Mdi Modbus Registers

    Trip 1 Start 0 to 99,999 40430-40431 Trip 1 Window 0 to 99,999 *These registers are not used by the MDI, even though they are labeled in the APG Modbus software Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...
  • Page 46 1 or 2 40517 Current Offset -5,000 to 5,000 40518 Enter Shortcut 0 to 5 *These registers are not used by the MDI, even though they are labeled in the APG Modbus software Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...
  • Page 47 Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...
  • Page 48 Automation Products Group, Inc. Tel: 1/888/525-7300 • Fax: 1/435/753-7490 • www.apgsensors.com • sales@apgsensors.com...

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